Don Fernando Fernández de Córdova y Valcárcel, 2nd Marquess of Mendigorría (2 September 1809, in Buenos Aires[1] – 30 October 1883, in Madrid[2]), was a Spanish military, politician, and Prime minister of Spain for one day.

Born into a military family as the son of José de Córdoba y Rojas, he and his brother Luis fought in the First Carlist War on the side of Isabelinos.

[5] He led a force of 4,000 Spanish soldiers, who were deployed in Gaeta and placed at the Pope's disposition.

[6] This marked the Spanish Army's first expeditionary venture into Italy since the War of the Austrian Succession a hundred years prior.

Fernando had always supported Queen Isabella II of Spain, but backed the Revolution of 1868 against the Crown, and joined the Radical Democratic Party.